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raycash.us

from

http://www.raycash.us/sfsidewalk/cdobplans.htm

How to Build a Dobsonian Telescope. The San Francisco Sidewalk Astronomers. Introduction and Photo of Completed 'Scope. Not-too-tech advice; Materials List; Tool List; Sources List. Overview Drawing of Six-inch 'Scope with Plywood Cut Pattern. Overview Drawing of Eight-inch 'Scope with Plywood Cut Pattern. Overview Drawing of Ten-Inch 'Scope with Plywood Cut Pattern. Section A: Preparing the Tube, Making Spider; Eyepiece Tube. Section B; Tailgate (Mirror Cell) Construction. To my other WebPages:.

calendopedia.com

Calendopaedia - What's New

http://www.calendopedia.com/whatsnew.htm

Calendopaedia - What's New. 19th August 2010 AD. Corrections made to the description of Persian Calendar. 17th January 2009 AD. Added page on the John Dee Calendar. 19th August 2008 AD. Added page on the Nepalese Calendar. 12th March 2007 AD. Minor changes to Ethiopian Calendar. 23rd April 2005 AD. Minor changes to Kepler's Laws'. 13th August 2004 AD. Added new page on the Ethiopian Calendar. Added text to Modern Calendars. 6th May 2004 AD. Corrected typos on Miscellaneous Calendars. 16th January 2004 AD.

raycash.us

Ray Cash's CCDs

http://www.raycash.us/scopeandimaging/1stccds.htm

All images on this page taken with the above Celestron 8 SCT fork setup and SBIG's 237 Pixcel CCD camera at f/1.95. Except Jupiter and Saturn: These images were taken at f/10. These are my very first images taken with this setup on 10/2-3/99. No guiding! No color imaging was attempted. Well, it. Attempted, but I didn't RTFM (Read The Frigging Manual)! Hope my imaging techniques will improve; but I plan on keeping these first images right here-. All images below are. Click on them for a larger view! 10 mi...

raycash.us

13-inch "Travel Scope" Plans

http://www.raycash.us/telescopeplans/travelscope.htm

Plans and Construction Tips for Building. A 13 Airline-Transportable Travel Scope. My lovely wife next to the 13 scope in Hawaii, 1998. The scope breaks down and fits into its. Own sturdy, airline-transportable case. I made this telescope around a 13 Coulter f/4.4 mirror in 1991 after seeing an article emphasizing such an approach by Tom Clark in. 131; 17.5; Equatorial Platform. Turn the page to:. The Table of Contents. To my other WebPages:. How to Make a Dobsonian Telescope. WebPages by, and for, ATM's.

raycash.us

Ray Cash astroimages

http://www.raycash.us/astroimages/astroimgs.htm

I am a relative newbie. When it comes to astro-imaging: I picked up Fastar. Imaging equipment around October of 1999; and only more recently (April 2001) have I been doing any prime-focus astro-film imaging. For the latter I use a 4 refractor (an Astro-Physics Traveler f/5.8), and a medium format camera (Pentax 6 X 7) loaded with mainly. Kodak E200 transparency film. Recently, I've traded in my ST-237 for a ST7E. And traded my C-8 for a C-9.25. Whether it is the C-8, ( Fastar. Some Furniture I've Made.

raycash.us

After about five years of having this page up

http://www.raycash.us/perso/sidewalk.htm

The San Francisco Sidewalk Astronomers. After about five years of having this page up, I have abrogated my association with the San Francisco Sidewalk Astronomers- mainly because I don't. Go out to the sidewalk anymore with my telescope(s). . . However, in this. World, I still encourage others to do so: it's a great way to 'share the universe' (and your enthusiasm! Especially if your temperament is at all outgoing. . . SF Sidewalk Astronomer information, go to: Morris Jones'. Make Your Own Telescope.

raycash.us

Some Furniture I

http://www.raycash.us/astroimages/furn.htm

Some Furniture I've Made. 1985) Materials: Solid Honduras Mahogany, Tulipe (Peru), Ebony. His' and 'Her's' Bureaus. 1985) Materials: Solid Red Oak; through dovetail construction throughout. 1980) Solids and plywood; about 30 coats of Tung oil applied. 1983) Bleached Mahogany solids and plywood, piano finished. Multiple coats of black lacquer) Maple 'speed lines,' Plexiglas top. 1983) Gloss black laminate, piano finished Maple, Glass Bricks. 1980) Solid White Oak and Plexiglas rods. 10 f/8.3 Telescope.

raycash.us

Ray Cash's Deep-Sky Page

http://www.raycash.us/deepsky/deepsky.htm

Ray Cash's Deep-Sky Page. The main thrust of this WebPage: Extensive notes from various observers. How to prepare; photos. Take an Astronomy Class this Summer in the Beautiful Sierra! Observing the 100 brightest Arp peculiar galaxies. my notes, so far. Obscure, Sometimes Large, Planetaries of the Summer. A few large Abell (and other) planetaries I observed these past two Summers. Recent observations of Jay McNeil's list as outlined in S&T's August, '99 article. Beyond the Messier List.